changing button iconCls from inside handler

[whalethewise]

Hi

I am trying to change iconCls for button that just clicked in handler (to show some kind of 'loading' icon telling user that something going on). But nothing changes until handler is finished. Any advise would be greatly appreciate. setLoading () looks ugly on button.

[scottmartin]

Are you loading an AGIF in the button?

Scott.

[whalethewise]

Yes. I am trying to use extjs\resources\themes\images\default\tree\loading.gif